While improved heat distribution reduces hair damage, a tourmaline-coated ionic generator substantially cuts drying time and seals the cuticle to lock in moisture and reduce frizz and static by 90%. One interesting bonus feature of the 4000i is that it has an ion switch, which you can leave on for smooth/straight hair or turn off if you want to add more volume.
In addition to providing improved heat distribution to prevent hair damage, the Carrera 2's ceramic ionic technology also reduces overall drying time and seals the cuticle to make hair silkier and shinier.